A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.
Classification: Clock or watch glass; glasses for noncorrective spectagles not optically worked; hollow glass spheres and their segments for the mnfctr ofsuch glasses
NSN 6645-01-193-5214
NSN 6610-00-681-0590
NSN 6610-01-585-2222
NSN 6145-00-278-0697
NSN 6610-00-822-0431
NSN 5965-01-005-0341
NSN 6145-00-153-2818
NSN 5950-01-097-2533
NSN 6240-01-531-4231
NSN 5895-01-168-8738
NSN 5920-01-592-3416
NSN 5930-01-536-1673